Automatic feed-water regulator



June 24, 1930. H. w. GANG AUTOMATIC FEED WATER REGULATOR Filed March'5, 1926 5 Sheets-Sheet I WITNESS:

Ano yEY June 24, I930.

' H. w. GANG w AUTOMATIC FEED WATER REGULATOR 3 Sheets-Sheet 2 Filed March 5, 1926 ATTORNEY YWITNESS' H. w. GANG AUTOMATIC FEED WATER REGULATOR June 24,- 1930.

Filed March 5, 1926 3 Sheets-Sheet 3 ATTORNEY wrrmsss:

Patented June 24, 1930 UNITED STATES HARRY W. GANG, 0F HUNTINGTON, 'WEST VIRGINIA AUTOMATIC FEED-WATER REGULATOR Application filed March 5, 1326. Serial No. 92,523l

This invention relates to an automatic water control for steam boilers, the general ob ject of the invention being to provide an expansion tube acted upon by the steam in the boiler to cause it to expand to open a valve which supplies steam to the water inspirator so that water will be supplied to the boiler, with means for permitting some of this water to act on the expansion tube, when the water reaches a certain level, which will cause the tube to contract and thus close the valve and stop the 7 operation of the inspirator.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim. I

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is an elevation of the device.

Figure 2 is a plan view of portionof the device.

Figure 3 is a section on line 33 of Figure 2.

Figure 4: is a diagrammatic view showing means for connecting the device to the inspirator and to its overflow valve.

Figure 5 is a section on line 55 of Figure 4:.

Figure 6 is a section on line 6-6 of Fig- I ure 4.

In these views, 1 indicates the expansion tube which is supported at one end by the support 2 and said tube passes through an opening formed in the support 3 of the valve chest 4:. The free end of the tube is closed by the cap 5 which carries a rod 6 which is connected to a lever 7 by a clip 8. Said lever is connected by the rod 9 and clip 10 to the valve 11 in the chest 4. The chest is provided with the central exhaust port 12 which leads to the exhaust pipe 13 and with the ports 15 and 16 which are connected by the pipes 17 and 18 with opposite ends of the cylinder '19, the piston of which is connected by the rod' 20 with the water inspirator or other pumping device for feeding water to the boiler. Steam is delivered to the valve support is provided with a threaded hole which communicates with the tube 1 and receives the lower end of the pipe 23. The tube 1 is held at a one inch slope, and this tube must be placed at the level where it is desired to hold the water in the boiler.

- The rod 20 of the piston in cylinder 19 has an extension 25 pivoted thereto which operates in a cylinder 26 which in turn is connected by a link 27 with an inspirator, a part of which is shown at 28. The extension 25 .has a certain amount of free move ment relative to the cylinder 26through means of the nuts 29 and 30 thereon and which are arranged at each side of the top of thecylinder so that the rod 20 and the extension 25 can move in either direction to a certain extent at the beginning of each stroke without moving the cylinder, but as soon as one of the nuts engages the cylinder, the cylinder will be caused to move with the extension. A spring 31 is arranged in r 19, the other end of the link being pivoted V to a'link'35 and a link 36, the link 35 being pivoted to a collar 37 on the rod 20, while the link 36 is pivoted to a bell crank 38 which is connected with the valve 32 by the, link 39. Thus the valve 32 will be opened and closed on the reciprocation of therod 20 by the piston in the cylinder 19.

When the water in the boiler drops below a level where it will flow from the'tube 1,

steam will enter the tube through the pipe 23 and this steam will cause the tube to expand so that it will move the lever 7 and therefore the valve 11 to a position where the ports 15 and 12 will be connected together so that the rear end of cylinder 19 will be opened to exhaust and live steam will pass through port 16 and pipe 18 into the front end of the cylinder 19, which will 'move the inspirator to operativeposition I and thus feed water into the boiler At the same time, the overflow valve of the in spirator' will be opened. The water will continue to rise in the boiler until it reaches a level where it will flow into the tube 1 from the pipe 24 and this comparatively cool 7 water will act to cause the tube to contract, so that the lever 7 and valve 11. will he moved to their other position and thus stop the feeding of water to the boiler. Thus the device is entirely automatic and will keep the water in the boiler at. a certain level. V I It is thought from the foregoing description that the advantages and novel features 25 of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement or" the several parts, provided that such'changes fall within the scope of the appended claim.

What I claim is;: 7

Av feed water regulator for boilers com-' prising an expansible ,tube, a stationary supportior one end of the tube, said support having a threaded socket therein for receiving the end of the tube and said support having a threaded hole ,in' communication with thetube, a pipe extending intoSaidhole and adapted .to connect to the steam space 40 of a boiler, a secondsupport having an opening therein through which the .tube passes, the opening being below the plane of the point of attachmentfofthe tube with the v first support so that one end of the tube is lower than the other end thereof, a cap closing the low'end of the tube, a pipe adapted to connect the low end of the tube with the water space ofa boiler, said pipe being con 7 nected with the cap, a steam chest on the U second support, a slide valve therein for controlling the flow of steam to a water feeding device, a lever pivoted .to a sta- V tionary part at its lower end, a stern con-' nected with the valve 'and .pivotally con nected with the upperend of the lever and a rod connecting the cap on the low end of V thetube with the flever-so that {the expansion illld contraction ofthe :tube will operate the ever. 7 v 5 C10 In testimony whereof I afiix my signa- 7 tu-re. V r 4 HARRY W.=GANG. 7 

